Throwing ball

A throwing ball is provided with a liner and a polymer foaming surface layer coated on the liner; the liner is a solid body, and the polymer foaming surface layer is an integral covered coating layer directly formed by foaming of polyurethane out of the solid liner. The utility model solves the defi...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SHAOZHEN YU
Format:	Patent
Sprache:	eng
Schlagworte:	AMUSEMENTS APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING BALL GAMES GAMES HUMAN NECESSITIES SPORTS TRAINING EQUIPMENT
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